Comparison Of Acoustic Insulation Provided By Infmite Plane Versus Circular
Closed Walls
Author(s)
J. António, L. Godinho & A. Tadeu
Abstract
Comparison of acoustic insulation provided by
infinite plane versus circular closed walls
J. Antonio, L. Godinho & A. Tadeu
Department of Civil Engineering,
University of Coimbra, Portugal.
Abstract
In this paper, analytical solutions are used to compute the acoustic insulation
provided by plane and circular closed walls when subjected to sinusoidal
harmonic line pressure loads.
In the first case the panel is assumed to have infinite extent and the pressure
wave field is computed using 2.5D Green's functions established in Cartesian
co-ordinates for an infinite solid layer bounded by fluid media. The threedimensional
problem is formulated as a summation of two-dimensional problems
for different wave numbers along the z direction. Each two-dimensional problem
in turn is written as a superposition of plane waves for varying wave numbers
along the x direction. The curved wall is modelled as a cylindrical solid annulus
bounded by fluid media, and the pressure wave field is computed using
analytic
Keywords
Related Book
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